This Sennheiser DW Pro 1 Phone DW20 USB Base and Wireless Headset DECT is a top-of-the-line communication tool for individuals in the business, office, and industrial sectors. With its wireless capabilities, it provides freedom of movement and convenience. The headset is manufactured by Sennheiser, a trusted brand in the industry, ensuring high-quality sound and durability. This unit quantity of 1 is all you need to revolutionize your communication experience. The headset comes with a USB base for easy connectivity and charging. Please note that a PSU is not included. Invest in this Sennheiser DW Pro 1 Phone DW20 USB Base and Wireless Headset DECT for improved communication and productivity.